Im not sure if your actually talking about a creature from the silent hill games or not, I've only played 1 & 4, and I've never seen a "crotch monster", then again I never made it completley through either of them, but to my knowledge, no

Ninja of Inazuma PM'd me asking if I wanted a sig, I said yes, and searched for some dragon images, found this one and liked it, and sent Inazuma the link, he made the sig for me, but the picture I found on google